Apparatus for exhausting wells



Aug. 5, 1930. c. A. ANDERSON APPARATUS FOR EXHAUSTING WELLS Filed March 12, 1928 I N V EN TOR. CHARLES A. ANDERSON.

BY W Wwm ATTORNEYS.

Patented Aug. 5, 1930 UNITED, STATES PATENT OFFICE APPARATUS FOR EXHAUSTING- WELLS Application filed March 12, 1928. Serial No. 260,900.

This invention relates to apparatuses for lifting fluids from deep wells.

It is the principal object of the present invention to provide a simple and inexpensive apparatus for exhausting liquids from deep wells.

In carrying out this object I provide a pumping tube which extends downwardly into a well. An injector pipe extends downwardly through the pump tube and is connected at its lower end to nozzles which project upwardly. This injector pipe is connected to the discharge port of a pump and fluid is pumped downwardly through the pipe and through the nozzles. The discharge of the fluid through the nozzles into the pump tube creates a suction in the well and causes the fluid in the well to be lifted into and up wardly through the pumping tube. The upper end of the pumping tube is connected to a receiving tank and tothe intake port of the pump and a suflicient portion thereof is directed to the pump to maintain a constant circulation, but as the amount of fluid lift- 5 ed is greater than that required by the pump the excess is delivered into the tank.

One form which the invention may assume is exemplified in the following description and illustrated by way of example in the accompanying drawings, in which:

Fig. 1 is a view of the complete apparatus with parts in section to more fully disclose the construction thereof.

Fig. 2 is an enlarged fragmentary view in.

central vertical section through the ejector nozzle.

Fig. 3 is a View of the nozzle in side elevation.

Fig. 4 is a section through the ejector nozzle taken on line IVIV of Fig. '3.

Fig. 5 is a transverse sectional View through the ejector nozzle taken on line V-V of Fi .3.

fieferring more particularly to the accompanying drawings, 10 indicates a well cas ing of a deep well extending downwardly in which is a pumping tube 11, the upper end of which is connected to a T fitting 12. One branch of the T fitting 12 is connected by means of a pipe 14 to the bottom of a tank 15. A valve 16 is provided to control the flow of fluid from the pump tube 11 to the tank 15. The other branch of the T 12 is connected by means of a pipe 17 to the intake port of a two staged centrifugal pump 18. This pump is directly connected to an electric driving motor 19. It is not essential that the pump be driven by an electric motor as any other suitable driving medium may be employed.

At the lower end of the pump tube 11 it is conected with a nozzle head 20 by means of a sleeve 21. This nozzle head 20 is formed with a longitudinal intake passageway 22 communicating with a chamber 23 at the lowerjend of the nozzle head. Extending vertically from this chamber 23 is a pair of nozzles 24 which are in vertical alignment with apair of passageways 25. In the present instance two nozzles 24 and two passageways 25 are provided. I may prefer, however, to provide a greater or lesser number of these nozzles and passageways depending upon the diameter of the pumping tube 11.

The upper end of the passageway 22 is connected to the lower end of an injector pipe 26 which is arranged centrally within the pipe 11 and extends upwardly through the T fitting 12 and then connected with the discharge port of the pump 18. The pipe 26 is considerably less in diameter than the pump tube 11 so that there will be a space in the pump tube 11 surrounding the pipe 26, as it is intended that fluid be pumped downwardly through the injector pipe through the passageway 26 8 and thence through the nozzles 24 upwardly through the passageways 25. These nozzles and passageways are so constructed so that the fluid discharged therethrough will be un-- der high velocity and create a suction within the well, so that the contents of the well will be lifted upwardly through the passageways 25 into the pump tube 11 and thence upwardly through the pump tube 11 to-the tank 15 and pump 18.

As the fluid lifted will be considerably greater in volume than the fluid discharged downwardly through the pipe 26 by the pump, a portion of the fluid lifted will be drawn into the intake nozzle of the pump 18 and the excess will be delivered through the pipe 14 to the tank 15. The fluid may be drawn off from the tank 15 through a pipe 2?.

I may prefer to use water as a starting fluid in pumping oil wells. In such instance the tank 15 is filled to the level indicated by the numeral 28. The pump is then started and fluid is discharged from the pump downwardly through the injector pipe 26 and thence through the nozzles 24 into the passageways 25. The velocity of the streams will create a suction in the well and the fluid in the well, whether oil or water, will travel through the passageways 25 and will be lifted through the pump tube 11. A portion of the fluid lifted through the pump tube 11 will pass into the pump 18 and be redischarged downwardly through the injector pipe 26 so that a constant circulation will be maintained through the pump. As the fluid lifted is greater in volume than that required by the pump, the excess will be delivered from the pipe 14 to the tank 15.

In case the fluid being pumped is oil, this oil will rapidly rise in the tank 15 above the water level and may drain off through the overflow pipe 17. he water level is maintained constant, however, due to the fact that the water overflow pipe 29 is almost to the oil level. The weight of the oil on the water will cause the water to overflow through this pipe in the event that the water level becomes higher than that indicated in the drawing by. the numeral 28.

In case it is desired to drain ofl all the oil, this may bedone through the means of a valve drain pipe 30.

In pumping water wells the tank is maintained full and the overflow is merely drawn ofi the top of the tank.

From the foregoing it is obvious that I have provided a very simple apparatus for lifting fluid from a well which apparatus is inexpensive to manufacture, efiicient in operation and will not easily become out of order.

While I have shown the preferred form of my invention, it is to be understood that Various changes may be made in its construction by those -skilled in the art without departing from the spirit of the invention, as defined in the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. An apparatus for lifting liquid from deep wells comprising a pump, a pump tube extending downwardly into the well below the fluid level therein, an injector pipe connected the discharge port of the pump and extending downwardly through the pump tube, a cyhndrical nozzle head threadedly connected to the lower end of the pump tube, said nozzle head having an intake passageway to which 'the injector pipe is connected,

a plurality of upwardly projecting nozzles in communication with the intake passageway, said head being formed with a plurality of vertical passageways forming communication between the interior of the pump tube and the well, said nozzles being in vertical alignment with said vertical passageways and positioned below the same with their upper ends closely contiguous to the lower ends of said passageways whereby fluid pumped downwardly through the injector pipe will pass through the nozzles into said passageways under high velocity to cause the fluid in the well to be lifted in the pump tube. v

2. An apparatus of the character described comprising a tank, a pump, a pipe connection between the intake port of the pump and the tank, a 'B' in said connection, a pump tube connected with said T and extending downwardly into a well, an injector pipe extending from the intake port of the pump through said T and downwardly through the pump tube, a, nozzle head connected to the lower end of the pump tube, said nozzle head having an intake passageway to which the injector pipe is connected, a plurality of upwardly PIOJ ecting nozzles in communication with the intake passageway, said head being formed with a plurality of vertical passageways forming communication between the interior of the pump tube and the well, said nozzles being in vertical alignment with said vertical passageways and positioned below the same with their upper ends closely contiguous to the lower ends of said passageways whereby fluid pumped downwardiy through the injector pipe will pass through the nozzles into said passageways under high velocity to cause the fluid in the well to be lifted in the pump tube.

3. An apparatus for lifting liquid from deep wells comprising a pump, a pump tube extending downwardly into the well below the fluid level therein, an injector pipe connected to the discharge port of the pump and extending downwardly through the pump tube, a cylindrical nozzle head connected to the lower end of the pump tube and forming a continuation thereof, said nozzle head having an intake passageway extending longitudinally thereof to which the in ector pipe is connected at one end, a chamber joined in said nozzle head and.communi eating with the other end of said intake passageway, a plurality of nozzles communicating with the chamber and capable of directing a fluid into one end of a plurality of longitudinally extending discharge passages terminating at their other end within said pump tube.

CHARLES A. ANDERSON. 

